Permanent magnet generator

The utility model relates to a permanent magnet generator, comprising a base (1); the outer circle of a pressing ring of the stator (2) is in hot jacket interference fit with the base (1), so that a circumferential air duct is formed between the base (1) and the outer circle of an iron core of the stator (2); the rotor is positioned in the stator (2) and is provided with a rotor magnetic pole (4) with a fin ventilating duct; and the cooler (6) is arranged at the top of the base (1). Compared with the prior art, a novel air-water cooling mode is adopted, cooling water circulation is conducted outside the generator, air circulation is conducted inside the generator, the circulation inside the generator provides a pressure head through rotation of a rotor with a fin ventilating duct, and meanwhile the top drive fan at the top of the cooler further provides kinetic energy of an inner circulation air path. 本实用新型涉及一种永磁发电机，包括：机座(1)；内设有通风道的定子(2)，定子(2)压圈外圆与机座(1)热套过盈配合，使机座(1)和定子(2)铁芯外圆之间构成周向风道；位于定子(2)内的转子，设有带翅片通风道的转子磁极